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When Did Carcharocles megalodon Become Extinct? A New Analysis of the Fossil Record

Overview of attention for article published in PLoS ONE, October 2014
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About this Attention Score

  • In the top 5% of all research outputs scored by Altmetric
  • High Attention Score compared to outputs of the same age (99th percentile)
  • High Attention Score compared to outputs of the same age and source (99th percentile)

Mentioned by

news
34 news outlets
blogs
13 blogs
twitter
135 tweeters
facebook
106 Facebook pages
wikipedia
2 Wikipedia pages
googleplus
9 Google+ users
video
5 video uploaders

Citations

dimensions_citation
24 Dimensions

Readers on

mendeley
75 Mendeley
Title
When Did Carcharocles megalodon Become Extinct? A New Analysis of the Fossil Record
Published in
PLoS ONE, October 2014
DOI 10.1371/journal.pone.0111086
Pubmed ID
Authors

Catalina Pimiento, Christopher F. Clements

Abstract

Carcharocles megalodon ("Megalodon") is the largest shark that ever lived. Based on its distribution, dental morphology, and associated fauna, it has been suggested that this species was a cosmopolitan apex predator that fed on marine mammals from the middle Miocene to the Pliocene (15.9-2.6 Ma). Prevailing theory suggests that the extinction of apex predators affects ecosystem dynamics. Accordingly, knowing the time of extinction of C. megalodon is a fundamental step towards understanding the effects of such an event in ancient communities. However, the time of extinction of this important species has never been quantitatively assessed. Here, we synthesize the most recent records of C. megalodon from the literature and scientific collections and infer the date of its extinction by making a novel use of the Optimal Linear Estimation (OLE) model. Our results suggest that C. megalodon went extinct around 2.6 Ma. Furthermore, when contrasting our results with known ecological and macroevolutionary trends in marine mammals, it became evident that the modern composition and function of modern gigantic filter-feeding whales was established after the extinction of C. megalodon. Consequently, the study of the time of extinction of C. megalodon provides the basis to improve our understanding of the responses of marine species to the removal of apex predators, presenting a deep-time perspective for the conservation of modern ecosystems.

Twitter Demographics

The data shown below were collected from the profiles of 135 tweeters who shared this research output. Click here to find out more about how the information was compiled.

Mendeley readers

The data shown below were compiled from readership statistics for 75 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
United Kingdom 2 3%
Chile 2 3%
France 1 1%
Germany 1 1%
Costa Rica 1 1%
United States 1 1%
Czechia 1 1%
Canada 1 1%
Unknown 65 87%

Demographic breakdown

Readers by professional status Count As %
Student > Bachelor 17 23%
Student > Ph. D. Student 15 20%
Researcher 15 20%
Unspecified 11 15%
Other 6 8%
Other 11 15%
Readers by discipline Count As %
Agricultural and Biological Sciences 25 33%
Earth and Planetary Sciences 20 27%
Unspecified 13 17%
Environmental Science 7 9%
Biochemistry, Genetics and Molecular Biology 5 7%
Other 5 7%

Attention Score in Context

This research output has an Altmetric Attention Score of 488. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 04 April 2019.
All research outputs
#15,945
of 12,954,230 outputs
Outputs from PLoS ONE
#357
of 140,049 outputs
Outputs of similar age
#245
of 232,081 outputs
Outputs of similar age from PLoS ONE
#14
of 3,063 outputs
Altmetric has tracked 12,954,230 research outputs across all sources so far. Compared to these this one has done particularly well and is in the 99th percentile: it's in the top 5% of all research outputs ever tracked by Altmetric.
So far Altmetric has tracked 140,049 research outputs from this source. They typically receive a lot more attention than average, with a mean Attention Score of 11.9. This one has done particularly well, scoring higher than 99% of its peers.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 232,081 tracked outputs that were published within six weeks on either side of this one in any source. This one has done particularly well, scoring higher than 99% of its contemporaries.
We're also able to compare this research output to 3,063 others from the same source and published within six weeks on either side of this one. This one has done particularly well, scoring higher than 99% of its contemporaries.